An Experimental Investigation of Turbulent Water Flow in Concentric Annulus Using Particle Image Velocimetry Technique

University of Alberta,School of Mining and Petroleum Engineering,Edmonton, AB T6G 2W2, Canadae-mail: fabioern@ualberta.ca

Majid Bizhani

University of Alberta,School of Mining and Petroleum Engineering,Edmonton, AB T6G 2W2, Canadae-mail: Bizhani@ualberta.ca

Mohammad Ashrafuzzaman

University of Alberta,School of Mining and Petroleum Engineering,Edmonton, AB T6G 2W2, Canadae-mail: mashrafu@ualberta.ca

Ergun Kuru

University of Alberta,School of Mining and Petroleum Engineering,Edmonton, AB T6G 2W2, Canadae-mail: ekuru@ualberta.ca

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received October 28, 2013; final manuscript received November 27, 2013; published online March 10, 2014. Assoc. Editor: Peter Vorobieff.

Abstract

Fully developed turbulent flow of water through a horizontal flow loop with concentric annular geometry was investigated using high resolution particle image velocimetry (PIV). Reynolds number range varied from 17,700 to 66,900. Axial mean velocity profile was found to be following the universal wall law (u+= y+) in the viscous sublayer (y+ < 10) and log law away from the wall (y+> 30). Radial position of zero shear stress and maximum velocity were found to be slightly different (2%). Root mean square values of velocity fluctuations velocity, Reynolds stresses, vorticity, and turbulent kinetic energy budget were also analyzed.

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